Perhaps you should try some spelling variations:
things change » things chapter
thing change » using change, teaching change, getting change
time last » time list, time past, time lost
tan yang » dan yang, tan ying, tan yong
robert j » robert _
robert e » robert _
yang vi » yang di, yang xi, yang yi
vi time » ii time, i time, ndvi time

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tan yang vi time last ((thing change) OR (things change)) ((robert j) OR (robert e)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tan yang vi time last ((thing change) or (things change)) ((robert j) OR (robert e)) ;~".
• Adding a wildcard symbol may retrieve word variants: tan yang vi time last ((thing change) or (things change)) ((robert j) OR (robert e)) ;*.